Chloromethyl Methyl Ether → HCID 67374757, Verbindung

Reaktionsgleichung

[CH3:1][O:2][C:3]([CH:5]1[C:10](=[O:11])[CH2:9][CH2:8][N:7]([C:12]([O:14][C:15]([CH3:18])([CH3:17])[CH3:16])=[O:13])[CH2:6]1)=[O:4].CCN(C(C)C)C(C)C.[CH3:28][O:29][CH2:30]Cl>C(Cl)Cl>[CH3:1][O:2][C:3]([C:5]1[CH2:6][N:7]([C:12]([O:14][C:15]([CH3:18])([CH3:17])[CH3:16])=[O:13])[CH2:8][CH2:9][C:10]=1[O:11][CH2:28][O:29][CH3:30])=[O:4]

Komponenten

Versuchsvorschrift

To a stirred mixture of 4-oxo-piperidine-1,3-dicarboxylic acid 1-tert-butylester 3-methyl ester (10 mmol, 2.71 g) and DIEA (1 mL) in DCM was added methoxymethyl chloride (1.3 mL) drop-wise and continued stirring for 16 h at room temperature. Volatiles were removed under reduced pressure, the resultant residue was taken up in ethyl acetate (50 mL), washed with water (25 mL), dried the organic layer, filtered and concentrated under reduced pressure. The resultant residue was purified by flash column chromatography using mixture of hexanes and ethyl acetate to provide 4-methoxymethoxy-5,6-dihydro-2H-pyridine-1,3-dicarboxylic acid 1-tert-butyl ester 3-methyl ester.